Experimental dataset on detection of SARS-CoV-2 specific IgG antibodies by the fiber optic microsphere-based sensor

The presented dataset is related to experimental detection of the ARS-CoV-2 specific IgG antibodies by the fibre optic microsphere-based sensor. To perform measurement we used a dedicated microsphere-based probe whose surface was immobilized.
The measurement system consisted of the broadband light source with central wavelength 1550 nm, optical spectrum analyzer, fibre optic link with splicer made of the single-mode fibre SMF 28 and sensors. The probe was placed in samples with different concentrations of the IgG antibodies.  We have recorded optical spectra for IgG concentration ranging from 1 mg/mL to 1 fg/mL. 
For each concentration, we performed a series of 10 measurements which was taken over a controlled period of time.